public class ThreadDemo2 {
    public static void main(String[] args) throws InterruptedException {
        Runnable target=()->{
            for (int i = 0; i <10; i++) {
                System.out.println(Thread.currentThread().getName()
                       +"我还在工作！");
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
            System.out.println(Thread.currentThread().getName()+"我结束了！");
        };
        Thread thread1 =new Thread(target,"李四");
        Thread thread2=new Thread(target,"王五");
        Thread thread3=new Thread(target,"老六");
        System.out.println("让李四开始工作");
        thread1.start();
        thread1.join();
        System.out.println("李四工作结束了，让王五开始工作");
        thread2.start();
        thread2.join();
        System.out.println("王五工作结束了");
        thread3.start();
        thread3.join();
        System.out.println("老六工作结束了");
    }
}
